The cervical venous hum.
D000328:Adult; D001314:Auscultation; D001783:Blood Flow Velocity; D002318:Cardiovascular Diseases / Q000175:diagnosis*; D002561:Cerebrovascular Disorders / Q000175:diagnosis; D002648:Child; D004374:Ductus Arteriosus, Patent / Q000175:diagnosis; D005260:Female; D006801:Humans; D006980:Hyperthyroidism / Q000175:diagnosis; D007601:Jugular Veins; D009333:Neck; D011247:Pregnancy